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What the Hubble Telescope Has Taught Us

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What the Hubble Telescope Has Taught Us
Abstract
The needs for an instrument that would take images of the universe from the space were inevitable since there were so many challenges studying space and the universe from earth. The Hubble telescope, named after the great scientist who confirmed the big bang theory, was the solution to this and it has been in space for the more than 20 years it was supposed to live. Over the time, the telescope has sent home so much information that mankind has realized how little they knew about the universe. This paper covers the needs for the Hubble telescope in space, the impacts that it has had in physics and science and what eventually happens to the telescope when its time expires. Introduction
Scientists have always been fascinated by the other features of the universe and have constantly studied about these objects. Edwin Hubble played a great role in the calculation of universe expansion. The process would not have been possible without the use of a telescope which was well advanced to handle the expanse distance. The first Hubble constant recorded by Edwin Hubble was 72±8 km/sec/mega parsec. However, with the new Hubble telescope, scientists have eliminated the margin of error and thus the Hubble constant, Ho, is today given with an almost double precision at 74.2 Km/sec/mega parsec with the error of margin being 3.6 (NASA, 2012). the essence of this essay is to bring out the impacts that Hubble telescope brings in the world of physics, and an evaluation of the instruments used by the Hubble telescope to attain the Hubble measurement of earth precision.
The telescope and the universe
The Hubble telescope has shown that there is little that individuals understand about the universe and what it holds. It has been noted that the universe is growing due to energy that scientists have named the dark energy. Additionally, it is with the help of the Hubble telescope that scientists argue that there is dark matter in the universe which is also part of the fast



References: NASA. ( 2010, April 24). Hubble Telescope at 20: NASA Astronomers ' Top Photos. Retrieved Feb 15, 2012, from National Geographic: http://news.nationalgeographic.com/news/2010/04/photogalleries/100424-hubble-telescope-20th-anniversary-pictures/ NASA. (2012). The Telescope. Retrieved Feb 15, 2012, from HubbleSite: http://hubblesite.org/the_telescope/nuts_.and._bolts/spacecraft_systems/ University of Manitoba. (2009, December 21). Hubble Telescope. Retrieved Feb 15, 2012, from http://home.cc.umanitoba.ca/~umbarkm4/hubble_telescope.html

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